VC 21658TBWD eligibleLane & turning
Lane straddling / unsafe lane movement
Failure to drive as nearly as practicable within a single marked lane, or moving from the lane without first determining it can be done safely.
Vehicle Code 21658 — statutory text
Official source ↗Whenever any roadway has been divided into two or more clearly marked lanes for traffic in one direction, the following rules apply: (a) A vehicle shall be driven as nearly as practical entirely within a single lane and shall not be moved from the lane until such movement can be made with reasonable safety. (b) Official signs may be erected directing slow-moving traffic to use a designated lane or designating those lanes to be used by traffic moving in a particular direction regardless of the center of the roadway, and drivers of vehicles shall obey the directions of the traffic control device.
Quoted from the California Legislative Information website. The full section may contain additional subdivisions not reproduced here — click “Official source” for the complete text as currently in force.
Base fine
$238.00
Does not include court fees or assessments.
DMV points
1
Points raise your insurance.
Filing window
30 days
From citation date, use form TR-205-2024.
You can file a Trial by Written Declaration
Under CA Vehicle Code § 40902, infractions may be contested in writing. If the officer fails to respond within their required window, your ticket is dismissed. California requires a bail deposit equal to the fine; it is refunded if dismissed.
Also known as
unsafe lane changestraddling lanesweaving between lanes
Defenses our AI considers (13)
- Equipment fixed — correctable violationhistorical success ~80%Equipment violations (window tint, exhaust, lights, plates, wipers, etc.) are correctable in every supported state. Proof of repair signed by a qualified inspector resolves the citation administratively.
- Documentary cure — proof on date of citationhistorical success ~75%Many "failure to produce" charges (insurance, registration, license) are dismissed on proof the document existed and was valid on the date of citation. This is codified in most state fix-it / correctable-violation statutes.
- Sign obscured, missing, or recently changedhistorical success ~50%A driver cannot be held to a regulation that was not reasonably communicated. An obscured, damaged, missing, or recently-changed sign at the cited location is both a mistake-of-fact defense and a due-process notice defect.
- Statute of limitations / speedy-trial violationhistorical success ~45%Every state imposes statutory deadlines between citation, arraignment, and trial. When the state misses a jurisdictional deadline — including officer-declaration deadlines in TBWD proceedings — dismissal is mandatory, not discretionary.
Our AI drafts 3 options per case, tailored to your ticket's facts. You choose or regenerate.